PCM5100PW - 2VRMS Stereo DAC | Texas Instruments
MPN： PCM5100PW ✓ 啟用中PCM5100PW 概覽
An audio DAC is a signal-conversion integrated circuit that translates digital audio samples into an analog voltage suitable for amplification or line-level output. Within the broader semiconductor hierarchy, the PCM5100PW is a DAC, an audio data converter, and a mixed-signal integrated circuit. It sits between a digital audio source, such as a USB interface or application processor, and an analog headphone, line, or power-amplifier stage.
Key features include a 100 dB stereo DAC dynamic range, 2 VRMS output capability, selectable digital-filter latency, and an integrated audio PLL. The PCM5100PW also uses DirectPath technology, requires no DC-blocking output capacitors, and includes an internal negative charge pump. These features support a compact analog output network while preserving the digital PCM input architecture.
The 32-bit PCM interface accepts 16-bit, 24-bit, or 32-bit word lengths at up to 384 kHz sampling rate. Its integrated PLL provides a convenient internal clock for the stereo DAC section. According to the Texas Instruments PCM5100 family datasheet, the device also supports internal pop-free operation, which helps reduce startup transients in audio equipment.
Typical applications include digital active speakers, compact stereo audio systems, USB audio adapters, Bluetooth audio receivers, game-console accessories, and portable consumer-audio products. The 3.0 V to 3.6 V supply range and 20-pin TSSOP package make the device suitable for designs where a small PCB footprint and integrated digital-to-analog conversion are priorities.
When laying out the PCB, place the digital interface and analog output paths in their respective functional regions, keep the analog output route short, and follow the manufacturer’s recommended decoupling and grounding arrangement. Confirm the output configuration, digital-filter latency, clocking method, and analog load requirements before finalizing the board design.
This product overview combines the manufacturer’s key device characteristics with application guidance, package information, and drop-in replacement considerations. It also distinguishes the PCM5100PW from related PCM510x devices so engineers can select the appropriate variant without relying on packaging-only ordering differences.
直接替換替代品，適用於 PCM5100PW — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PCM5100PW （相同外形與佔位） — 差異在於 Dynamic Range, Digital Audio Interface, Digital Filter, Operating Temperature Range, Package.
PCM5101PW
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PCM5102PW
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PCM5141PWR
✅ 直接替換📋 參考替代品（不在目錄中）
PCM5100PW 最大額定值與電氣特性
| Device Type | Stereo audio digital-to-analog converter |
| Dynamic Range | 100 dB |
| 輸出電壓 | 2 VRMS |
| Number of Audio Channels | 2 channels |
| Supported Word Lengths | 16 bit, 24 bit, 32 bit |
| Maximum Sampling Rate | 384 kHz |
| Digital Audio Interface | PCM serial |
| Integrated Clocking | Integrated audio PLL |
| Supply Voltage Range | 3.0 V to 3.6 V |
| 工作溫度範圍 | -25°C to +85°C |
| 封裝 | 20-pin TSSOP |
| Package Width | 4.40 mm |
| Lead Pitch | 0.173 mm |
| Output Architecture | 2 VRMS DirectPath |
| Digital Filter | Selectable digital-filter latency |
| DC Blocking Capacitors | Not required |
| Charge Pump | Internal negative charge pump |
| Startup Behavior | Internal pop-free operation |
| 安裝類型 | Surface mount |
PCM5100PW 4.40 mm 腳位配置指南
PCM5100PW（4.40 mm 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： PCM5100PW.
請參閱 資料表 以查看完整腳位配置。
典型應用
PCM5100PW 適用於 6 應用s: Digital Active Speaker, USB Audio Adapter, Bluetooth Audio Receiver, Game Console Accessory, Portable Consumer Audio, Audio Test and Measurement.
Digital Active Speaker
The PCM5100PW fits a digital active-speaker path where a digital source must become an analog line-level signal. Its stereo architecture supports independent left and right channels, while the 2 VRMS DirectPath output provides useful signal headroom for a subsequent power amplifier. The documented 16-bit, 24-bit, and 32-bit PCM input and sampling rates up to 384 kHz also allow the same converter core to serve conventional or high-resolution playback systems. Design the output network around the datasheet’s recommended loading and grounding arrangement, and keep the analog traces short and separated from digital clock activity.
推薦
USB Audio Adapter
The PCM5100PW is suitable for a USB-to-analog audio adapter that accepts PCM audio from a USB controller and converts it to stereo line output. Its serial PCM interface and integrated audio PLL simplify the transition from a digital USB transport to an analog signal. The converter supports 16-bit, 24-bit, and 32-bit data and reaches 384 kHz, making it applicable to playback products that need more than standard 48 kHz operation. Validate USB packet timing, master-clock configuration, and filter latency before enabling full-rate playback.
推薦
Bluetooth Audio Receiver
A Bluetooth headset or speaker receiver can use the PCM5100PW after its Bluetooth audio processor has decoded the stream into PCM data. The stereo DAC accepts common 16-bit and 24-bit word lengths, supports up to 384 kHz, and includes the clocking resources needed for many digital audio paths. Its 2 VRMS DirectPath output can feed a headphone or line amplifier while avoiding DC-blocking capacitors. The practical constraint is host clocking: the digital audio engine and PCM5100 must use a compatible master/slave configuration and valid sample-rate transitions.
推薦
Game Console Accessory
The PCM5100PW can provide high-quality stereo output for a game-console sound adapter, display, or accessory that receives digital audio from a host processor. Its low-voltage 3.0 V to 3.6 V operating range is compatible with compact embedded audio systems, and the 20-pin TSSOP supports a relatively small PCB footprint. The 100 dB dynamic range and 2 VRMS output provide a useful starting point for consumer entertainment equipment. Firmware must configure the source for the converter’s PCM interface, and the analog path should use short routing with a quiet ground reference.
推薦
Portable Consumer Audio
A portable speaker, recorder, or compact media device can use the PCM5100PW when its digital subsystem already provides a compatible PCM stream. The converter’s integrated audio PLL and selectable digital-filter latency support integration with digital audio engines, while its low 3.0 V to 3.6 V supply range suits compact power architectures. The TSSOP package helps limit board area, although careful layout is needed to keep switching and clock noise outside the analog output path. Battery-powered designs should also account for supply ripple, startup behavior, and output idle conditions.
推薦
Audio Test and Measurement
The PCM5100PW can serve as the playback converter in an audio test fixture, signal-chain demonstrator, or compact measurement system driven by a known PCM source. Supporting 16-bit, 24-bit, and 32-bit data up to 384 kHz permits the same fixture to exercise multiple digital-audio formats, while the 2 VRMS output provides a practical range for downstream instrumentation. The integrated audio PLL simplifies fixture clock generation, but the reference source must still satisfy the converter’s timing requirements. Use the manufacturer’s recommended output loading and document the selected filter latency in test results.
推薦
推薦產品摘要
工程參考資料，適用於 PCM5100PW — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PCM5101PW | PCM5102PW | PCM5141PWR |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 20-TSSOP | 20-TSSOP - same package | 20-TSSOP - same package | TSSOP-20 - same package |
| Device Type | Stereo audio DAC | Stereo audio DAC | Stereo audio DAC | Stereo audio DAC |
| Number of Outputs | 2 outputs | 2 outputs | 2 outputs | 2 outputs |
| Number of Pins | 20 pins | 20 pins | 20 pins | 20 pins |
主要差異化特點
- Documented 100 dB stereo DAC performance (對比PCM5141PWR)
- DirectPath output eliminates DC-blocking capacitor requirements (對比PCM5101PW)
- Broad PCM format and sampling-rate support (對比PCM5141PWR)
設計說明
Separate the digital input and clock region from the analog output region, and route the two DirectPath outputs as short, quiet traces. Place decoupling capacitors at the device supply pins using the manufacturer’s recommended values and topology. A single-layer connection between power, ground, and signal can couple switching current into the audio output, so use a continuous ground reference and avoid routing analog outputs beneath noisy digital clocks.
Do not assume that every 20-pin stereo DAC is automatically interchangeable with the PCM5100PW. Although PCM5101PW, PCM5102PW, and PCM5141PWR use related package formats, their clock requirements, filter latency, output implementation, and supported data modes must be checked against the manufacturer datasheet. Update the host firmware, analog network, and test vectors after any substitution.
Configure the PCM source and PCM5100 clocking path according to the family datasheet before evaluating sound quality. Account for the selected digital-filter latency when synchronizing playback, trigger signals, or metering. If the converter follows a switching supply or USB data source, verify the output spectrum under full digital activity because clock and supply spurs can appear even when the DAC’s intrinsic dynamic range is high.
Operate the 3.0 V to 3.6 V supply only within the documented range and ensure that the source can support the DAC’s load transients. The 2 VRMS output capability describes the analog output stage rather than the allowable supply voltage; an output stage must not be driven beyond the load and voltage conditions shown in the manufacturer application circuit. Include startup and shutdown behavior in system-level pop-noise testing.
合規資訊
No explicit PCM5100PW RoHS, REACH, lead-free, halogen-free, or conflict-minerals declaration was identified in the available product information. AEC-Q100 qualification is not stated for this ordering code.